This manual relates to an old release of the Library.
The documentation for the current release is also available on this site.

NAG CL Interface
f16hbc (zload)

Settings help

CL Name Style:


1 Purpose

f16hbc broadcasts a scalar into a complex vector.

2 Specification

#include <nag.h>
void  f16hbc (Integer n, Complex alpha, Complex x[], Integer incx, NagError *fail)
The function may be called by the names: f16hbc, nag_blast_zload or nag_zload.

3 Description

f16hbc performs the operation
x (α,α,,α) T ,  
where x is an n-element complex vector and α is a complex scalar.

4 References

Basic Linear Algebra Subprograms Technical (BLAST) Forum (2001) Basic Linear Algebra Subprograms Technical (BLAST) Forum Standard University of Tennessee, Knoxville, Tennessee https://www.netlib.org/blas/blast-forum/blas-report.pdf

5 Arguments

1: n Integer Input
On entry: n, the number of elements in x.
Constraint: n0.
2: alpha Complex Input
On entry: the scalar α.
3: x[dim] Complex Output
Note: the dimension, dim, of the array x must be at least max(1,1+(n-1)|incx|).
On exit: the scalar α scattered with a stride of incx. Intermediate elements of x are unchanged.
4: incx Integer Input
On entry: the increment in the subscripts of x between successive elements of x.
Constraint: incx0.
5: fail NagError * Input/Output
The NAG error argument (see Section 7 in the Introduction to the NAG Library CL Interface).

6 Error Indicators and Warnings

NE_ALLOC_FAIL
Dynamic memory allocation failed.
See Section 3.1.2 in the Introduction to the NAG Library CL Interface for further information.
NE_BAD_PARAM
On entry, argument value had an illegal value.
NE_INT
On entry, incx=value.
Constraint: incx0.
On entry, n=value.
Constraint: n0.
NE_NO_LICENCE
Your licence key may have expired or may not have been installed correctly.
See Section 8 in the Introduction to the NAG Library CL Interface for further information.

7 Accuracy

The BLAS standard requires accurate implementations which avoid unnecessary over/underflow (see Section 2.7 of Basic Linear Algebra Subprograms Technical (BLAST) Forum (2001)).

8 Parallelism and Performance

f16hbc is not threaded in any implementation.

9 Further Comments

None.

10 Example

The scalar 0.5-0.3i is loaded into a vector of length 4, stored in x with increment 2 (incx=2).

10.1 Program Text

Program Text (f16hbce.c)

10.2 Program Data

Program Data (f16hbce.d)

10.3 Program Results

Program Results (f16hbce.r)